November 21st, 2008
Homepage
About PBX-Change
Our Services
Need Support?
Contact PBX-Change
Frequently Asked Questions
866.375.6307
   
   

 
   
Glossary of Terms
 

YOU WILL NOTICE THAT OCCASSIONALLY YOU WILL SEE THESE "?" LINKS. THESE HAVE BEEN INCLUDED TO HELP YOU BETTER UNDERSTAND THE TERMONOLOGY AND TECHNOLOGY WE OFFER. BY CLICKING THEM YOU WILL BE TAKEN TO A MORE DETAILED EXPLANATION OF THE TOPIC.
 
"No KSU":<< BACK
 
A phone containing all control functions normally associated with a KSU, thus not requiring a KSU.  
66 Block:<< BACK
 
A terminal block where up to 4 sets of up to 25 pairs of wire can be interconnected. The installer uses a special "punch down" tool to connect the wires.  
Acceler8:<< BACK
 
Our line of analog voice line packages.  
Account/Authorization Code:<< BACK
 
Allows restriction of inter-group calls, and track these calls.  
 
Automatic Call Distributor A special facility of a PABX or Central Office switch that automatically routes incoming calls to the next available or longest idle agent or attendant in a line hunt group.  
ACD Queue :<< BACK
 
ACD Queue is the system of arrangment for automatic call distribution. It determines how to handle calls - routes and prioritizes, according to who needs to handle them. The system's order for the call jobs in a queue depends on the priority system being used. Usually, calls are moved in the same order that they were placed on the queue. But in some cases, certain calls are given higher priority. The queue is set by handling instructions in a database.  
ADSL :<< BACK
 
   
Attendant Console :<< BACK
 
Allows the operator to view all users within the group via a GUI interface and manipulate calls.  
Auto-attendent :<< BACK
 
Customizable, automated receptionist that allows callers to dial by extension or name  
 
Beginning of Message A short electrical pulse provided by a digital announcer when used in certain 4 wire E & M modes. The pulse alerts the PABX that the Beginning of a Message is coming.  
Butt Set:<< BACK
 
A sophisticated one piece telephone used by technicians to diagnose telephone lines or equipment.  
C.O./CO:<< BACK
 
Central Office A main telephone office where switching equipment is housed and customer lines originate. Also contains trunk line connections to other Central Offices. A C.O. line is a phone line coming from the Central Office and terminating at the user’s premise.  
Call Capacity Management Group :<< BACK
 
Allows the admin to limit the number of active sessions.  
Call Forwarding :<< BACK
 
Predefined transfer of incoming phone calls to predefined routes. Typically forwarding can be set to send calls to another extension, a cellular phone, etc.  
Call Park :<< BACK
 
Allows users to suspend a call and then retreive that call from any extension.  
Call Pickup :<< BACK
 
Users assigned to call pickup group can answer calls from any phone in that group.  
Caller ID:<< BACK
 
A feature of phones that allows for the display of a caller's number on the handset that is receiving the call. Newer units allow for the display of names as well.  
Carbon Transmitter (Handset):<< BACK
 
The microphone of a telephone handset which uses carbon granules and a diaphragm. The diaphragm responds to voice and varies the pressure on the granules and hence, their resistance.  
Centrex:<< BACK
 
A name for an umbrella service offering of the local telephone company. Customers lease a portion of the Central Office switch to create a centralized point of control and routing. In concept, Centrex is providing similar features to a PABX.  
 
1100 Hz .5 second tone generated every 3.5 seconds by fax machines  
Communications Platform:<< BACK
 
Communications platform describes the structure or standard needed to support communications, the transmission of data between two points, either by telephone or computer or integration of both in a PBX system.  
Contact Closure:<< BACK
 
Contacts that when "closed" connect a pair of wires together and disconnects the wires when "open". A doorbell button is a simple example of a momentary contact closure.  
 
Calling Party Control (Disconnect Supervision) A short break in the line current in the called party’s phone line when the calling party hangs up. Not available on PABX’s.  
Cross-platform:<< BACK
 
Cross-platform describes formats, applications or devices that work on different or multiple platforms.  
 
Computer Telephone Integration, Enabling computers to know about and control telephony functions such as making and receiving voice, fax, and data calls, telephone directory services, and caller identification.  
 
Direct Inward Dialing is a feature allowing callers to directly reach a PABX extension without an operators assistance.  
Distinctive Ringing (also known as ringmate, custom ring, identifying ring master):<< BACK
 
Different patterns of ringing that allow a user to identify the source of the call, outside, or inside (intercom) or who the call is for. Usually two burst or three burst with different durations.  
 
Digital Subscriber Line  
 
Dual Tone Multi-Frequency (Touch Tone) Audible tones which conform to North American Telephone Standards. These are generated by push-button telephones to dial telephone numbers, as well as to provide control or data input to voice processing systems. Especially significant in the operation of Viking automated attendants and fax/data line sharing devices.  
Dynamic IP:<< BACK
 
A temporarily assigned IP address from a requesting Dynamic Host Configuration Protocol (DHCP) computer from a pool of IP addresses.  
E & M:<< BACK
 
Control (4 wire E & M), (the receive and transmit leads of the signaling system) An equipment signaling system usually used in PABX applications with a digital announcer. This interface control scheme is standard equipment on most Viking announcers.  
E2 Memory:<< BACK
 
(See Non-Volatile)  
Earth Ground:<< BACK
 
A wire conductor that terminates in the earth for electrical purposes.  
Enterprise System:<< BACK
 
Enterprise System is a business organization that generally relies on computers and internally- linked computer networks or systems to do business.  
Erlang:<< BACK
 
Erlang is a term that measures traffic density in a telecommunications system, based on an hour.  
Fault tolerance:<< BACK
 
Fault tolerance refers to a system's dependable and favorable response to unpredictable hardware or software failure. Levels of tolerance range from low - continued operations to high - mirrored operations capability guaranteed by a duplicate backup system. For example, in case of power failure on one computer, telephone or system, another can take over.  
 
Federal Communications Commission  
Follow Me Calling:<< BACK
 
Follow Me Calling refers to calls that one may have routed, or fowarded, to another telephone number.  
Ground Start Line:<< BACK
 
A type of call signaling. In this scheme, when a call is routed to a subscriber, the phone company will apply a ground signal on the TIP side of the line even before a ring signal is sent. By detecting this signal, phone systems can immediately determine that the line is about to be in use, and avoid call crashing.  
Hook Switch Flash or Switch Hook Flash:<< BACK
 
A signal originated by momentarily depressing the switch hook on a single line phone. Typically used for accessing C.O. or PABX features.  
Hosted PBX:<< BACK
 
Business phone system that operates from a public-switched telephone system, without requiring customer-installed equipment. Integrated with existing equipment and public service, Hosted PBX provides call routing, follow-me calling, voicemail, fax-mail, automatic call distribution queues and more!  
 
Hertz Indicates the frequency (number of cycles per second) of alternating current such as ringing voltage or Touch Tone signals.  
Hunt Groups:<< BACK
 
Allows calls to be routed to an idle member of a group using a pre-selected pattern.  
 
Intrusion Detection System, describes a security function that monitors all inbound and outbound network activity. It looks for suspicious patterns that may indicate a network or system 'hack' or attack. It follows an alert procedure, reducing risk of system attack or compromise.  
Industry Canada:<< BACK
 
(Formally DOC) is the equivalent of U.S. FCC.  
Intercept:<< BACK
 
To stop a telephone call directed to an improper telephone number, and redirect that call to an operator or recording.  
 
Internet Protocol Telephony, IP is the most common basic addressing protocol used by all devices connected to a computer network.  
 
Integrated Services Digital Network An emerging international standard that defines interfaces for simultaneous voice and data transmission through a single channel over the public network.  
ISDN Terminal Adapter:<< BACK
 
An interface between an ISDN line and a computer. Often these provide 1 or 2 analog POTS output ports.  
 
Internet Service Provider.  
Key System:<< BACK
 
A key system or key telephone system is a multiline telephone system typically used in small office environments.  
 
Key Service Unit A central control cabinet serving many multi-button key telephones. Contains equipment which enables the user to pick up and hold PABX or Central Office lines and provide flashing line, steady, busy and wink hold signals. Dial intercom service is also an option.  
 
Light emitting diode.  
Loop Current:<< BACK
 
Current that flows from the C.O. when a telecom device goes off hook.(typically 20 to 50 Ma)  
Loop Start Line:<< BACK
 
A type of calling signal that relies on a telecom device to allow DC current to flow when it goes into an off hook condition. The C.O. or PABX senses this current and intercepts it as a request for service. Also known as "POTS".  
 
Music On Hold  
 
Monthly Reoccuring Charges  
N.O. /N.C.:<< BACK
 
Normally Open/Normally Closed Contact  
Non-Volatile E 2 Memory:<< BACK
 
Memory that will not be lost from a power failure: Does not need battery backup.  
 
Non Reoccuring Charges  
 
Off Premise Extension A telephone line from the phone system terminated in a different building than the phone system.  
 
Private Automatic Branch Exchange Phone system used to switch telephones between extensions and to outside lines. For incoming and outgoing (dial 9) calls.  
 
Private Business Exchange, a private telephone network used within a business although the network often extends to multiple locations. Users on the exchange network have a separate internal call routing system. External lines may be integrated, but they are shared and distinct.  
 
Printed Circuit Board  
Phone System Upgrade:<< BACK
 
An upgrade of your existing phone system.  
 
Plain Old Telephone Service (See C.O., Analog Single Line Station, Loop Start Line)  
Queue:<< BACK
 
A job group or call line-up, or the process of how calls line up and wait to be handled.  
Rack Mount:<< BACK
 
Equipment which is designed to mount in a standard steel framework consisting of parallel pairs of steel channel verticals spaced 19" and drilled for mounting screws.  
RAD/RAN Device:<< BACK
 
A Record/ANnounce device such as a Digital Announcer.  
RAN Trunk/RAN Circuit:<< BACK
 
A Record/ANnounce trunk or circuit that connects the telephone system to a record/announce device.  
 
Ringer Equivalency Number 1 REN = The energy to ring 1 Plain Old Telephone. The REN number can be found on the FCC label on the device. The total ringer load on a line is equal to the sum of all the REN numbers of all the telephone devices connected to the line.  
Ring Back Tone:<< BACK
 
The sound you hear when the phone you call is ringing.  
Ring Generator:<< BACK
 
A circuit producing AC voltage that is higher that 50 VRMS and has a frequency of 20 Hz.  
Ring Signal:<< BACK
 
Same as ring back tone.  
Ring Trip:<< BACK
 
The process of stopping the AC ring signal and connecting the voice path at the C.O. when the ringing telephone is answered.  
Ring Voltage:<< BACK
 
A 20 Hz AC voltage higher than 50V superimposed on the phone line to ring bells, activate ring detectors in phone systems, faxes, modems, etc.  
Ringdown Circuit :<< BACK
 
A circuit connecting 2 devices so that when one device goes off hook it automatically rings the other device.  
RJ-11, RJ-14, RJ-21X, RJ-25:<< BACK
 
The various sizes for phone plugs.  
 
Root Mean Square. This is simply a fancy way of describing the average voltage level of an audio signal.  
Routing:<< BACK
 
Refers to a telephone call's path from source to destination. Routing is usually managed by a router, which directs the call or message to pass from one monitor to another.  
RS232:<< BACK
 
An Electronic Industry Association (EIA) standard that defines a computer interface for connecting serial communication devices such as printers and modems.  
Scalable:<< BACK
 
Describes how well a system adjusts to shifting demand. A scaleable system for business means one that grows reflectively with the business, starts with basics but features upgrade options to meet greater business demands.  
 
   
 
Single Line Telephone  
Simultaneous Ring:<< BACK
 
When someone calls, all the programmed phones will ring at the same time and whichever phone you pick up first, gets the call. If you do not pick up the call on any phones then it goes to voicemail of the phone that picks up first.  
 
Small Office/Home Office An acronym for a new class of employment where the employee may be performing part or all of their work at home in a small office set up.  
Static IP :<< BACK
 
static IP address is a number (in the form of a dotted quad) that is assigned to a computer by an Internet service provider (ISP) to be its permanent address on the Internet. Computers use IP addresses to locate and talk to each other on the Internet, much the same way people use phone numbers to locate and talk to one another on the telephone.  
Subscriber Line:<< BACK
 
The telephone line connecting the local Telco Central Office to the customer’s telephone instrument or telephone system.  
System:<< BACK
 
Refers to interdependent people or things interacting to do work. System also describes a method for how work is done.  
System Architect:<< BACK
 
Refers to the technician who will help in deciding which functions and features of a phone system will best be used to fit a companies needs.  
Talk Battery:<< BACK
 
DC voltage supplied by the C.O. to the subscriber’s loop to operate the telephone equipment.  
 
Time Domain Multiplexing, (TDM) A type of multiplexing used by many older PABX systems, where two or more channels of information are transmitted over the same link by allocating a different time interval ("slot" or "slice").  
Telco:<< BACK
 
Local Telephone Company  
Terminal Device:<< BACK
 
Telephone, phone system, fax, modem, etc. capable of terminating an analog phone line.  
Trunk:<< BACK
 
A telephone communication path or channel between two points, one usually being a Central Office.  
Trunk Port:<< BACK
 
An input on a PABX or KSU that is used to interface the system with C.O. lines.  
 
Uniform Call Distributor An ACD programmed to distribute calls to agents or representatives on a basis other than the next available. (See ACD). Each person in the group receives the same number of calls.  
 
Uninterruptible Power Supply Provides power to your phone equipment, computers, etc., in the event of a commercial power failure.  
Virtual PBX:<< BACK
 
Business phone system that operates from a public-switched telephone system, without requiring customer-installed equipment. Integrated with existing equipment and public service, Virtual PBX provides call routing, follow-me calling, voicemail, fax-mail and automatic call distribution queues.  
 
Voice mail. Any system for sending, storing and retrieving audio messages, like a telephone answering machine. more info  
 
Voice over ip (VoIP) Any technology providing voice telephony services over IP, including CODECs, streaming protocols and session control. The major advantage of VoIP is lower cost, by avoiding dedicated voice circuits. more info  
 
Voice Operated eXchange Your voice starts it. When you stop speaking its stops.  
Wave File :<< BACK
 
The standard computer file type for audio.  
 
 
 
  | privacy